Convert to EDT ai save restric

Author: kevin-lann

course-matrix/backend/src/utils/convert-time-string.ts

@@ -16,5 +16,16 @@ export function convertTimeStringToDate(timeString: string): Date {
   date.setSeconds(seconds);
   date.setMilliseconds(0);
 
-  return date;
+  // Convert to EDT (GMT-4)
+  // First get the UTC time by adding the local timezone offset
+  const utcDate = new Date(date.getTime() + date.getTimezoneOffset() * 60000);
+  
+  // Then subtract 4 hours for EDT
+  const edtOffset = -4 * 60 * 60000;
+  const edtDate = new Date(utcDate.getTime() + edtOffset);
+  
+  console.log("Original date:", date);
+  console.log("EDT date:", edtDate);
+
+  return edtDate;
 }